DF3-4S-2R26(05) Equivalent & Substitute Parts

Part Overview

The DF3-4S-2R26(05) is a 4-position rectangular receptacle connector manufactured by Hirose Electric Co Ltd, designed for discrete wire termination using Insulation Displacement Contact (IDC) technology with 26 AWG wire gauge. This connector features a tin contact finish and closed-end housing in black. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

DF3-4S-2R26(05)

Hirose Electric Co LtdIn Stock: 937DF3-4S-2R26(05) Datasheet

Current PartRFQ

DF3-4S-2C

Hirose Electric Co LtdIn Stock: 35480DF3-4S-2C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF3-4S-2R26(05) is determined by the following critical parameters:

• Series Compatibility: Both parts must belong to the DF3 series to ensure mechanical and electrical compatibility
• Position Count: Substitute must maintain 4-position configuration
• Pitch Specification: 0.079" (2.00mm) pitch is mandatory for connector alignment and mating
• Connector Type & Contact Type: Receptacle with female socket contacts required
• Mounting Configuration: Free hanging (in-line) mounting type must be preserved
• Regulatory Compliance: RoHS compliance status must be maintained or upgraded

The DF3-4S-2C qualifies as a substitute based on these parameters. However, the termination method differs: the main part uses IDC termination for discrete wires, while the substitute uses crimp termination and is supplied as a housing without contacts included.

Parameter Comparison

Engineering Selection Recommendations

The DF3-4S-2C is the manufacturer-recommended substitute for the obsolete DF3-4S-2R26(05). Selection of this substitute is supported by the following factors:

• Active Product Status: The DF3-4S-2C maintains active production status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: ROHS3 compliance represents an upgrade from the original RoHS Compliant designation, meeting current environmental standards
• Series Continuity: Both connectors belong to the DF3 series, preserving mechanical and electrical compatibility within the product family
• Mechanical Compatibility: Identical pitch, position count, and mounting configuration ensure direct mechanical substitution

Critical Implementation Note: The DF3-4S-2C is supplied as a housing without contacts. Implementation requires separate procurement and assembly of crimp-style contacts compatible with the DF3 series. This differs from the original part, which included IDC termination for discrete wires. System design must account for the change in termination methodology and associated assembly procedures.

Frequently Asked Questions (FAQ)

Q: Can the DF3-4S-2C be used as a direct drop-in replacement for the DF3-4S-2R26(05)?

A: Mechanical compatibility is confirmed for mating and mounting. However, termination methodology differs: the original part uses IDC termination for discrete wires, while the substitute requires crimp-style contacts. Assembly procedures and contact procurement must be adjusted accordingly.

Q: What is the significance of the DF3-4S-2C being supplied without contacts?

A: The DF3-4S-2C is a housing component. Contacts must be procured separately and assembled into the housing. This modular approach allows flexibility in contact selection but requires additional assembly steps compared to the pre-assembled IDC version.

Q: Are the pitch and position specifications identical between these parts?

A: Yes. Both connectors maintain 0.079" (2.00mm) pitch and 4-position configuration, ensuring compatibility with existing mating connectors and PCB layouts.

Q: Does the substitute meet current regulatory requirements?

A: Yes. The DF3-4S-2C carries ROHS3 compliance, which exceeds the original RoHS Compliant designation and meets current environmental standards.

Q: What is the primary reason for substitution?

A: The DF3-4S-2R26(05) is classified as obsolete. The DF3-4S-2C is the active equivalent within the DF3 series, ensuring continued availability and support.